---
title: "Initiate a KBA session"
method: POST
path: "/customers/{id}/kba"
tags: ["kba"]
---

# Initiate a KBA session

`POST /customers/{id}/kba`

Creates a new KBA (Knowledge-Based Authentication) session for a personal Verified Customer. Returns a KBA identifier that represents the session and is used to retrieve authentication questions for customer verification.

## Path parameters

- `id` string, required

## Headers

- `Accept` 'application/vnd.dwolla.v1.hal+json', required

## Response `201`

created

## Other responses

- `403` — 403 Error
- `404` — 404 Error

## Changes

- **2025-06-06** `231d0268586b` — 6 info
  - the response property `code` became required for the status `404`
  - the response property `message` became required for the status `404`
  - the response property `oneOf[subschema #1: InvalidResourceStateSchema]/code` became required for the status `403`
  - the response property `oneOf[subschema #1: InvalidResourceStateSchema]/message` became required for the status `403`
  - …2 more
- **2025-05-23** `4c8b16e05918` — 1 breaking
  - added the new required `header` request parameter `Accept`

[Change history](https://skmtc.dev/dwolla/apis/dwolla-api/changes/customers/:id/kba/post.md)

---

[API](https://skmtc.dev/dwolla/apis/dwolla-api.md) · [All operations](https://skmtc.dev/dwolla/apis/dwolla-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/dwolla/dwolla-api/revisions/0e13062ae3be/schema)